ChemicalBook CAS DataBase List Triphenylsilane

Triphenylsilane synthesis

13synthesis methods

Product Name:Triphenylsilane
CAS Number:789-25-3
Molecular formula:C18H16Si
Molecular Weight:260.41

Triphenylsilane can be synthesized by reducing phenylsilane (PhSiH3) with a reducing agent such as lithium aluminum hydride (LiAlH4). The overall reaction equation is as follows:
3 PhSiH3 + 2 LiAlH4 → C18H16Si + 2 LiH + 2 AlH3
This reaction is typically carried out in anhydrous conditions and under inert gas atmosphere.

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789-25-3
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Yield:789-25-3 65%

Reaction Conditions:

with sodium tetrahydroborate in acetonitrile at 20; for 0.25 h;Inert atmosphere;

Steps:

2.2-2 Synthesis of example 2
After replacing the interior of a 7 mL test tube equipped with a stirring bar with nitrogen gas,Under nitrogen flow,In this test tube,0.5 mL of acetonitrile as a reaction solvent,As a reducing agent, sodium borohydride (NaBH 4, ReagentPlus (registered trademark), manufactured by Sigma-Aldrich Japan Co.,Purity 99%) 37.8 mg (1.0 mmol)To prepare a suspension.To this suspension,147.4 mg (0.5 mmol) of triphenylchlorosilane (Ph 3 SiCl) was added,The reaction was allowed to proceed for 15 minutes while stirring at room temperature.After the reaction,Acetonitrile was distilled off,To the obtained product (mixture), 5 mL of n-hexane was added under the atmosphere, and the mixture was filtered using a silica pad,By drying,85.0 mg (0.326 mmol) of triphenylsilane (Ph 3 SiH) was isolated.The yield of triphenylsilane was 65%

References:

NIPPON SHOKUBAI COMPANY LIMITED;OSAKA CITY UNIVERSITY;ABE, TAKASHI;NAKAZAWA, HIROSHI JP2017/160160, 2017, A Location in patent:Paragraph 0039; 0040

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